If you can prove that the offer letter was issued in bad faith, for example the employer issued 2 offer letters for 1 position (hence one of the letters was iss

If you can prove that the offer letter was issued in bad faith, for example the employer issued 2 offer letters for 1 position (hence one of the letters was issued for a job that doesn't exist) then I suspect you may have a legal case. 2022 exposed the fact that in the US, with its at-will employer, offer letters never offered much of a protection if they were offered in good faith, and then rescinded.